1974 Chevrolet C20 problems

General information about Chevrolet-C20
Overview of popular issues
Analysis of common problems
Сomplaints list
Recalls list

The third generation of the C/K series is a range of trucks that was manufactured by General Motors from the 1973 to 1991 model years. Serving as the replacement for the "Action Line" C/K trucks, GM designated the generation under "Rounded Line" moniker. Again offered as a two-door pickup truck and chassis cab, the Rounded Line trucks marked the introduction of a four-door cab configuration.

Marketed under the Chevrolet and GMC brands, the Rounded Line C/K chassis also served as the basis of GM full-size SUVs, including the Chevrolet/GMC Suburban wagon and the off-road oriented Chevrolet K5 Blazer/GMC Jimmy. The generation also shared body commonality with GM medium-duty commercial trucks.

In early 1987, GM introduced the 1988 fourth-generation C/K to replace the Rounded Line generation, with the company beginning a multi-year transition between the two generations. To eliminate model overlap, the Rounded Line C/K was renamed the R/V series, which remained as a basis for full-size SUVs and heavier-duty pickup trucks. After an 18-year production run (exceeded only in longevity by the Dodge D/W-series/Ram pickup and the Jeep Gladiator/Pickup), the Rounded Line generation was retired after the 1991 model year.

From 1972 to 1991, General Motors produced the Rounded Line C/K (later R/V) series in multiple facilities across the United States and Canada. In South America, the model line was produced in Argentina and Brazil, ending in 1997.

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Common 1974 Chevrolet C20 problems

Based on the information provided in the sources, here are some common issues and weaknesses with the 1974 Chevrolet C20 truck:

Oil Pressure Loss: Owners of Chevy trucks like the C20 have reported oil pressure loss issues. For example, a 1980 Chevrolet K20 with a 1975 7.4L 454ci engine experienced a drop in oil pressure from 40psi to 25psi after an oil change. This drop in pressure persisted even after changing the oil pan gasket, indicating a potential underlying issue with the oil system.

Safety Concerns: The National Highway Traffic Safety Administration (NHTSA) provides safety ratings for vehicles like the 1974 Chevrolet C20. These ratings help consumers assess the safety of the vehicle, including frontal barrier tests, side barrier tests, side pole barrier tests, and rollover resistance tests. Owners can also check for recalls related to their specific vehicle identification number (VIN) to address safety issues.

These issues highlight the importance of thorough inspections when considering purchasing a classic truck like the 1974 Chevrolet C20. It is advisable for potential buyers to carefully examine these common problem areas and conduct a comprehensive evaluation before making a purchase decision.

What engine does a Chevy C20 have?

Specifications for Chevrolet C20 Regular Cab 5.7 V8 Hydra-Matic, 167hp, 1985 4-speed.

What is the difference between a C10 and a C20?

C10 vs C20 Towing Capacity

In 1962, the two C10 options had a maximum payload capacity of 1,500 pounds for the Fleetside model and 1,550 pounds for the Stepside. The C20 had a payload capacity of 3,400 pounds in either the Fleetside or the Stepside model.

What engine was on the 1974 C10?

1974 Chevy C10: Engine

A 250ci I-6 engine powers the creampuff pickup, and it's backed by a three-speed manual transmission.

Is a C20 4 wheel drive?

A pickup truck produced by Chevrolet. The C20 is two-wheel drive, the four-wheel drive version is the K20.

What engine does a Chevy C20 have?

Specifications for Chevrolet C20 Regular Cab 5.7 V8 Hydra-Matic, 167hp, 1985 4-speed.

What are the differences between a C10 and C20?

Chevy C10 and C20 Differences. The obvious difference between the C10 and the C20 is that one is a half-ton and the other a three-quarter-ton truck. These classifications don't refer to their respective curb weights, but rather to their payload capacity.

What engine was on the 1974 C10?

1974 Chevy C10: Engine

A 250ci I-6 engine powers the creampuff pickup, and it's backed by a three-speed manual transmission.

What is a C20 car?

The C20, which was a 3/4 ton, rear wheel drive pickup truck, was offered with two inline six engines, as well as V8 powerplants, which included small or big block options. These engines ranged from 155hp to 325hp in power, with drive sent to the rear wheels through manual or automatic transmissions.

1974 Chevrolet C20 car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Chevrolet C20 problems, we found that the most common problems with these 2023 model year vehicles are:

Fuel system problems
Gasoline problems

The graph below shows statistics for all 1974 Chevrolet C20 vehicle components and the number of complaints received.

1974 Chevrolet C20 complaints

The NHTSA has received 1 complaints about various vehicle components related to the 1974 Chevrolet C20.

2001-04-29

FUEL SYSTEM, GASOLINE PROBLEM

Date Of Incident: 2024-11-24
VIN: CKY244F3126
Components: FUEL SYSTEM, GASOLINE
Summary: I NEED TO FIND OUT WHETHER THIS TRUCK WAS RECALLED FOR HAVING SIDE SADDLE FUEL TANKS MOUNTED OUTSIDE THE FRAME. THE VEHICLE WAS ABANDONED IN MY YARD APPROXIMATELY THE SUMMER OF 1996. IN FEBRUARY OF 2000, I FOLLOWED THE REQUIRED PROCEDURES TO OBTAIN TITLE TO THE VEHICLE. I REPLACED THE ENGINE AND ENOUGH OTHER COMPONENTS TO MAKE THE TRUCK ROAD-WORTHY AND HAVE BEEN DRIVING IT FOR A YEAR. I JUST BECAME AWARE OF THIS FUEL TANK PROBLEM AND NEED TO FIND OUT WHETHER THE VEHICLE WAS RECALLED. I DON'T THINK THE PREVIOUS OWNER TOOK THE VEHICLE IN FOR ANY TYPE OF RETROFIT BECAUSE IT HAS BEEN DISABLED IN MY YARD FOR ABOUT 5 YEARS. IF THERE WAS A RECALL ISSUED FOR THIS VEHICLE I WOULD LIKE TO KNOW HOW I CAN MAKE USE OF IT.*AK

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1974 Chevrolet C20 recalls

The National Highway Traffic Safety Administration (NHTSA) has issued 3 recalls for different components of the 1974 Chevrolet C20.

2007-10-24

Manufacturer: HONEYWELL INTERNATIONAL, INC.
Components: EQUIPMENT
Summary: CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHICLES LIST ABOVE. THE AFFECTED FILTERS ARE MARKED WITH A DATE CODE A61451 THROUGH A72571 SEQUENTIALLY. THE DATE CODE AND PART NUMBER APPEAR ON THE FILTER HOUSING. FRAM RACING HP4 AND HP8 OIL FILTERS NOT BEARING A DATE CODE IN THIS RANGE ARE NOT AFFECTED BY THIS RECALL. THE GASKET OF THE OIL FILTER BECOMES MORE PLIABLE UNDER HIGH TEMPERATURES AND PRESSURES.
Consequence: THIS CONDITION MAY CAUSE INADEQUATE SEALING AND LOSS OF ENGINE OIL, POSSIBLY RESULTING IN A FIRE.
Remedy: HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING NOVEMBER 2007. OWNERS CAN CONTACT FRAM CUSTOMER SERVICE TOLL-FREE AT 1-800-890-2075.